Nadir Emissivity Radiative Transfer Models For Planetary Regolith: Current State of the Art

Details Nadir Emissivity Radiative Transfer Models For Planetary Regolith: Current State of the Art Nadir Emissivity Radiative Transfer Models For Planetary Regolith: Current State of the Art

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.5607p&link_type=abstract

American Astronomical Society Meeting 205, #56.07; Bulletin of the American Astronomical Society, Vol. 36, p.1433

Computer Science

Performance

Scientific paper

A decade ago, a paradigm for theoretically calculating the nadir emissivity values of planetary regolith laboratory proxy samples was established in the literature: determining single-scattering properties of the target light scattering particles via Mie theory and incorporating multiple-scattering via an analytical two-stream approximation to the radiative transfer (RT) equation. While a qualitative comparison between Mie/analytical RT hybrid model and lab values performs reasonably, it is well known that Mie theory is a gross simplification of scatterer geometry; axially symmetric shapes used in interstellar dust models may be substituted as an improvement. Astronomers, accustomed to increasing the number of streams to 16 or greater to accurately determine radiation field intensities for diffuse media, generally seek out a 2-n stream numerically exact RT solution, which may be inappropriate for flux or mean intensity calculations. In this work, we compare the performance of the most recent analytical 2-stream approximation method (Hapke 2002) and a popular discrete ordinates numerically exact RT solution (Stamnes et al. 1988) to determine strengths and weaknesses of each RT solution method. We briefly discuss strategies to incorporate better shape and particle packing assumptions into planetary regolith emissivity models.
This work is supported through NASA MDAP (MJW, KMP).

Affiliated with

Also associated with

No associations

Rating

Nadir Emissivity Radiative Transfer Models For Planetary Regolith: Current State of the Art does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nadir Emissivity Radiative Transfer Models For Planetary Regolith: Current State of the Art, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nadir Emissivity Radiative Transfer Models For Planetary Regolith: Current State of the Art will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1638703